December 20, 2017 at 7:55 pmbushrarSubscriber
Usually after running a simulation with cylindrical capillaries I usually check to see that there is only a slight difference between ANSYS calculated pressure drop through the capillary vs. the analytically calculated pressure drop(in the case of constant viscosity using Hagen Poiseulle: ( deltaP= 8*L*Q*visc/(pi*r^4)) . I was wondering how to analytically check a geometry using a capillary with a slanted entrance as shown below:
December 21, 2017 at 4:06 pmraul.raghavSubscriber
I doubt if you'll find an analytical relationship for the case you're looking at. And based on the image of the geometry and a rough visual estimation of the length (L) and radius (R) of the capillary, I'm sure Hagen-Poiseuille equation would not apply for your case (L needs to be >> R, so the flow is fully developed).
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